Finding the Fourth Proportional to 386,360.88, 578,743.56 and 286,633.68
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Solution
The fourth proportional to 386,360.88, 578,743.56 and 286,633.68 is: 429,358.68
Step by Step Solution
- Step 1: Write the proportion equation
386,360.88 : 578,743.56 = 286,633.68 : x - Step 2: Convert to fraction form
386,360.88/578,743.56 = 286,633.68/x - Step 3: Cross multiply
386,360.88x = 578,743.56 × 286,633.68 - Step 4: Simplify right side
386,360.88x = 165,887,396,379.10 - Step 5: Solve for x
x = 165,887,396,379.10/386,360.88 - Step 6: Final answer
x = 429,358.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.